Miguel A. Olivares-Méndez Pascual Campoy Carol Martínez Iván Fernando Mondragón A pan-tilt camera Fuzzy vision controller on an unmanned aerial vehicle. 2879-2884 2009 IROS http://dx.doi.org/10.1109/IROS.2009.5354576 conf/iros/2009 db/conf/iros/iros2009.html#Olivares-MendezCMM09